When one puts cocaine on a girl's asshole with the intent to lick it off.

After we got back from the club and started making out, I began to go down on my girlfriend when she ask me if I'd put a little salt on the rim. I said I had already had too much to drink but if she wanted another martini I'd go fix her one. The situation was clarified when she whipped out a small plate of cocaine...then I knew what sort of cocktail she was after.